摘要
随着计算机技术的不断发展,PLC控制技术得以不断扩展和完善,其功能远远超出了逻辑控制和顺序控制的范畴,具备了模拟控制、过程控制以及远程通信等功能。PLC支持多种工业标准总线,易于组成工程控制网,在对浦口水厂自控系统更新改造中采用了ControlLogix公司的A-B 1756-L55M23,采用符合Ethernet/IP标准的100 Mb/s全双工交换式光纤自愈工业以太环网方式,大大提高工程的生产率。
With the development of the computer, the PLC is perfected day by day. The function has overtopped the category of logical control and sequence control. It provides with simulation control, process control and remote communication, etc. PLC supports manifold industry standard bus, is prone to constitute the project control network. In the reconstruction of the control system of Pukou water factory, the A-B 1756-L55M23 PLC and the industry Ethernet network are adopted to rebuild the collective frame. After this new control system is used, the productivity is greatly increased.
出处
《测控技术》
CSCD
2006年第7期40-43,共4页
Measurement & Control Technology
